Bug Description

Hello, I am trying to download metadata for books in Russian from Ozon.ru and get parsing errors

I use 'vanilla' Calibre and provide only isbn for search, (my environment is bellow):

calibre, version 2.15.0
ERROR: No matches found: <p>Failed to find any books that match your search. Try making the search <b>less specific</b>. For example, use only the author's last name and a single distinctive word from the title.<p>To see the full log, click Show Details.